When background webcontent suspension is enabled some foreground pages may incorrectly suspend. We need to disable this by default until the bug is fixed.
rdar://107233385
Pull request: https://github.com/WebKit/WebKit/pull/12017
Committed 262174@main (ee0988b18d73): <https://commits.webkit.org/262174@main> Reviewed commits have been landed. Closing PR #12017 and removing active labels.
Re-opened since this is blocked by bug 255918